Scanning Gate Microscopy of a Nanostructure where Electrons Interact
arXiv:0801.3970 · doi:10.1103/PhysRevLett.100.226802
Abstract
We show that scanning gate microscopy can be used for probing electron-electron interactions inside a nanostructure. We assume a simple model made of two non-interacting strips attached to an interacting nanosystem. In one of the strips, the electrostatic potential can be locally varied by a charged tip. This change induces corrections upon the nanosystem Hartree-Fock self-energies which enhance the fringes spaced by half the Fermi wavelength in the images giving the quantum conductance as a function of the tip position.
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- What is measured in the scanning gate microscopy of a quantum point contact?
- Theory of scanning gate microscopy
- Electron phase shift at the zero-bias anomaly of quantum point contacts
- Thermoelectric Scanning Gate Interferometry on a Quantum Point Contact
- Thermal Enhancement of Interference Effects in Quantum Point Contacts
- Detection of interaction-induced nonlocal effects using perfectly transmitting nanostructures
- Scanning Gate Microscopy of Quantum Contacts Under Parallel Magnetic Field: Beating Patterns Between Spin-Split Transmission Peaks or Channel Openings
- Universal Scaling of the Quantum Conductance of an Inversion-Symmetric Interacting Model